Inproceedings: An article in a conference proceedings.
Atlas-based segmentation of pathological brain MR images
Title of the conference
ICIP 2003, International Conference on Image Processing
Barcelona, Spain, September 14-17, 2003
Proceedings ICIP, IEEE International Conference on Image Processing
Publication type : Proceedings Paper
We propose a method for brain atlas deformation inpresence of large space-occupying tumors, based on an apriori model of lesion growth that assumes radialexpansion of the lesion from its starting point. First,an affine registration brings the atlas and the patientinto global correspondence. Then, the seeding of asynthetic tumor into the brain atlas provides a templatefor the lesion. Finally, the seeded atlas is deformed,combining a method derived from optical flow principlesand a model of lesion growth (MLG). Results show that themethod can be applied to the automatic segmentation ofstructures and substructures in brains with grossdeformation, with important medical applications inneurosurgery, radiosurgery and radiotherapy.
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